Require explicit artifact, file, canvas, or format cues before turning response text into an Office artifact, while still allowing standalone deliverable-shaped drafts to open in the canvas. Add a same-turn guard so the response affordance does not duplicate documents already created with document_artifact, plus regression coverage for noisy long-document cases.
- Auto-open Office and Browser canvas surfaces from fresh tool results, including history/result messages.
- Preserve Browser target IDs when focusing a canvas session from tool output.
- Convert substantial response-style artifacts into Office documents at runtime, without relying only on prompt compliance.
- Attach Office artifact metadata to the completed response log so the canvas opens without leaving a dangling Processing group.
- Polish Office UX by removing the inactive version-history action, showing only the healthy dot, and improving Collabora blank-load recovery with browser state cleanup.
- Deduplicate auto-open events and ignore stale results.
